Illumination system

Details Illumination system Illumination system

1980-10-27

1983-06-21

Gluck, Irwin

Illumination

Light source and modifier

Including reflector

355 67, 362263, 362299, 362300, 362301, 362307, F21V 704, F21V 1304

Patent

active

043897010

ABSTRACT:
An illumination system having a light source disposed along a central axis of the system is provided with a conical reflector coaxially disposed about the light source for forming an annular virtual image of an arc of the light source. A toroidal lens is coaxially disposed about the central axis for forming a circular real image of the annular virtual image of the arc at the input port of a utilization device.

REFERENCES:
patent: 3329812 (1967-04-01), Harling
patent: 3457401 (1969-07-01), Hoekstra
patent: 3689760 (1972-09-01), Stewart
patent: 3768900 (1973-10-01), McLintic
patent: 4225923 (1980-09-01), Bloemendal et al.
patent: 4241392 (1980-12-01), Boone
patent: 4281366 (1981-07-01), Wurster et al.

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